This isn't a saying per se, it is a way of saying that has had an amazing effect on my attitude towards everything in my life.
Instead of saying: &quot;I HAVE TO go to work&quot; (I have to do this or that, whatever this or that may be) say: &quot;I GET TO go to work.&quot; (I get to do this or that, whatever this that may be)
When I learned about this simple change in wording, I was surprised by how many times I would say, &quot;I have to...&quot;
For me, saying &quot;I get to...&quot; instead puts me in a good state of happy anticipation instead of a rueful, sighing, &quot;now I must&quot; state of mind.